Fix jack min sdk version for ub branches

Bug: 27371864

(cherry picked from commit d6101b678688bce96d67f8d945537f405f648194)

Change-Id: Idd926f5667fbe4275f8f1d80733b8c4471570874
diff --git a/core/java.mk b/core/java.mk
index db6bcde..41a11ec 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -29,12 +29,17 @@
       ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),current)
         # Use android_stubs_current if LOCAL_SDK_VERSION is current and no TARGET_BUILD_APPS.
         LOCAL_JAVA_LIBRARIES := android_stubs_current $(LOCAL_JAVA_LIBRARIES)
-        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
       else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),system_current)
         LOCAL_JAVA_LIBRARIES := android_system_stubs_current $(LOCAL_JAVA_LIBRARIES)
-        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
       else
         LOCAL_JAVA_LIBRARIES := sdk_v$(LOCAL_SDK_VERSION) $(LOCAL_JAVA_LIBRARIES)
+      endif
+
+      ifeq ($(LOCAL_SDK_VERSION),current)
+        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
+      else ifeq ($(LOCAL_SDK_VERSION),system_current)
+        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
+      else
         my_jack_min_sdk_version := $(LOCAL_SDK_VERSION)
       endif
     endif